The present invention relates to a filler comprising a recovered carbon black having an iodine adsorption number, measured according to ASTM D-1510-17 of between 9 g/kg and 160 g/kg, preferably between 115 g/kg and 140 g/kg. The present invention also relates to a composite material comprising a rubber and a filler according to the invention. Moreover, the present invention relates to an article comprising said composite material, wherein the article is for example a tyre, such as, a passenger car tyre, a truck tyre, an agricultural tyre, an OTR (off-the-road) tyre, an aircraft tyre, a solid tyre, a bicycle tyre or a mining tyre.

Systems and methods are provided for converting plastic waste into carbon pigment. Received polymer material such as plastic waste is degraded at 350-600° C. to form carbon-rich liquid and non-condensable syngas, and the carbon-rich liquid is then pyrolyzed at 1100-2200° C. to form carbon nanoparticles that may be used as carbon pigment. The syngas and possibly some of the form carbon-rich liquid may be used to provide heat to the system.

Disclosed is an impurity removal and modification method for pyrolysis carbon black of waste tires, the method comprising: dispersing pyrolysis carbon black of waste tires in an alkali solution of potassium ferrate; adding hypohalite; leaving to stand for layering; and performing centrifugation and washing on a lower-layer slurry to obtain a stably dispersed pyrolysis carbon black/water suspension. This modification method can be operated simply and easily; and by means of the method, ash in pyrolysis carbon black of waste tires can be effectively removed, and the pyrolysis carbon black is then stably dispersed in water. In addition, the modification method is low in production cost, and is green and environmentally friendly, and a waste liquid thereof can be recycled.

The invention relates to a process for converting used tyres to obtain carbon black, comprising the following steps: a) sending a solid feedstock based on used tires to a reaction zone in the presence of a liquid solvent to obtain a vapor effluent and a first liquid effluent comprising the carbon black, b) sending the liquid effluent to a filtration and washing unit to obtain a filtered and washed carbon black cake and a second liquid effluent; c) sending said vapor effluent and the second liquid effluent to a fractionation zone to obtain at least one hydrocarbon cut; d) sending said hydrocarbon cut obtained at the end of step c) to the reaction zone as liquid solvent of step a); e) drying the carbon black cake.

The present invention includes a system and a method for the refinement of char and the manufacture of regenerated carbon black through waste tire pyrolysis, wherein, in a process of refining char obtained through a pyrolysis process of a waste tires, volatile constituents of char are preferentially removed prior to molding using a pyrolysis furnace having a continuous-type configuration and capable of operating in a continuous manner, and microparticular or microparticle-type regenerated carbon black is produced using the resulting char of increased purity as a material and then molded into spheres with water serving as a binder, whereby regenerated carbon black of high quality can be produced, with the concomitant achievement of cost reduction and an increase in output in the process of producing corresponding spherical regenerated carbon black.

A reactor for converting polymer containing materials, such as rubber, including tire rubber, or pyrolyzed rubber, including pyrolyzed tires, or plastic, including pyrolyzed plastic, into output products includes a feed section, a central heating-zone section having a first processing zone configured to heat the material to a first temperature and a second processing zone configured to maintain the material at the first temperature, a discharge section, means for withdrawal of vaporized short-chain hydrocarbon compounds being formed, at least one water steam injector configured to introduce water steam into the interior of the second processing zone and positioned at the bottom of the second processing zone, or at least one CO2 gas injector configured to introduce CO2 gas into the interior of the second processing zone and positioned at the bottom of the second processing zone, or both, and heating means for heating the material. The reactor can include at least one more reactor thereby forming a modular system having a battery of side-by-side positioned reactors.

The invention relates to a process for converting a plastic feedstock and for converting used tyres to obtain carbon black, comprising the following steps: a) a solid feedstock (100) based on used tyres is sent into a reaction zone (10) in the presence of a liquid solvent (340) comprising aromatic compounds to at least partly dissolve said solid feedstock and to thermally decompose said dissolved solid feedstock so as to obtain carbon black (160) and a first hydrocarbon-based liquid fraction (120); b) a molten plastic feedstock (200) is sent together with at least a portion of the first hydrocarbon-based liquid fraction (120) obtained on conclusion of step a) into a conversion zone (20) to dissolve said molten plastic feedstock (200) and to thermally decompose said dissolved plastic feedstock so as to obtain a second hydrocarbon-based liquid fraction (230).

One variation for a method for converting tires into pelletized, recovered carbon black includes: shredding a set of tires into a volume of tire rubber segments, the set of tires selected from a group comprising an agricultural tire, a commercial vehicle tire, and a passenger tire; in a pyrolytic reactor, thermally depolymerizing the volume of tire rubber segments into a volume of carbonaceous material; comminuting the volume of carbonaceous material; removing from the volume of carbonaceous material agglomerates larger than the maximum agglomerate diameter; within a mixer, mixing the volume of carbonaceous material with a binding agent over a first interval, the mixer inducing formation of a set of pellets of a range of pellet diameters; drying the set of pellets within a dryer to a particular moisture content; and removing from the set of pellets a first subset of pellets larger than a maximum pellet size.

The invention relates to a thermolysis system and method for obtaining recovered carbon black and fuel from disused tires, which includes a thermolysis reactor and a flash vessel acting jointly to refine fuel without the need for post-treatment to clean same. During thermolysis, condensers are cleaned without needing to cut the flow or deviate the gas stream, since the deposits formed inside tubes of a heat exchange system are cleaned using a part of the fuel obtained. The carbon black obtained is comparable to existing semi-reinforcing carbon blacks. The obtained fuel has a high content of aromatic compounds, and its carbon content is reduced to 3% by weight, up to 0.8% by weight, with respect to fuels obtained in pyrolytic processes, without requiring post-treatment such as distillation processes or catalytic treatment.

The invention provides a method of making a electrocatalyst from waste tires. The method comprises the steps of providing rubber pieces; optionally contacting the rubber pieces with a sulfonation bath to produce sulfonated rubber; pyrolyzing the rubber to produce tire-derived carbon composite comprising carbon black, wherein the pyrolyzing comprises heating to at least 200° C.-2400° C.; activating the tire-derived carbon composite by contacting the tire-derived carbon composite with an alkali anion compound to provide activated tire-derived carbon supports; and loading the activated carbon-based supports with platinum cubes. In another embodiment, the tire-derived carbon composite is activated by annealing in a carbon dioxide atmosphere.